CN2856985Y - Tungsten wire electrothermal atom transmitting spectrograph - Google Patents
Tungsten wire electrothermal atom transmitting spectrograph Download PDFInfo
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- CN2856985Y CN2856985Y CN 200520033944 CN200520033944U CN2856985Y CN 2856985 Y CN2856985 Y CN 2856985Y CN 200520033944 CN200520033944 CN 200520033944 CN 200520033944 U CN200520033944 U CN 200520033944U CN 2856985 Y CN2856985 Y CN 2856985Y
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- atomic emission
- emission spectrometer
- atomizer
- tungsten coil
- electrothermal
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Abstract
A tungsten coil electrothermal atomic emission spectrometer belongs to atomic emission spectral analysis device and comprises a tungsten coil atomizer, a minitype charge coupled device and a portable computer data processing system, wherein the tungsten coil serves as an atomizer, namely emission source; the minitype charge coupled device and the portable computer are connected with each other by an USB interface. The utility model makes the spectrograph be miniaturization by adopting tungsten coil to serve as the atomizer, namely emission source, of the atomic emission spectrometer. Comparing with the present atomic emission spectrometer, the tungsten coil electrothermal atomic emission spectrometer has the advantages of lower power expenditure, lower gas expenditure, economy, less additional equipment, compactness, and is suitable to promotion-application; furthermore, the tungsten coil electrothermal atomic emission spectrometer is expediently to be carried and to be used for field and locale analysis.
Description
Technical field:
Atomic Emission Spectral Analysis
Background technology:
Tungsten filament (tungsten coil) has report [Hou XD as atomizer in atomic absorption spectrum, Jones BT.Tungsten devices in analytical atomic spectrometry.Spectrochim.Acta Part B, 2002,57 (4), 659-668.], do not see tungsten filament is applied in the atomic emission spectrum but have so far.
Inductively coupled plasma-Atomic Emission Spectrometer AES (inductively coupled plasma atomicemission spectrometry of widespread use at present, ICP-AES), successfully be applied to [Broekaert JAC.State-of-the-art and trends of development in analytical atomic spectrometry with inductivelycoupled plasma as radiation and ion sources in the analysis of various samples, Spectrochim.Acta Part B, 2000,55 (7), 739-751.], traditional spark (arc) electric arc (spark) Atomic Emission Spectrometer AES is yet continuing bringing into play waste heat [Zhou ZD, Zhou KZ, HouXD, Luo H.Arc/spark optical emission spectrometry:principles, instrumentation, and recentapplications.Appl.Spectrosc.Rev., 2005,40 (2), 168-185.].Their application that ICP-AES and arc/spark-AES have had some common drawbacks limit: 1. instrument is bulky, is not suitable for on-the site analysis; 2. complex structure is operated loaded down with trivial details; 3. energy consumption is big.For ICP-AES, it also has some shortcomings as buying and the standing charges height, and the gas consumption amount is big, needs the professional to use and maintenance etc.; Traditional arc/spark-AES then data processing (spectrography) is loaded down with trivial details.Therefore be necessary to develop a kind of simple, small-sized, portable Atomic Emission Spectrometer AES to satisfy the need of many on-the site analysiss.
Goal of the invention:
Because existing Atomic Emission Spectrometer AES complex structure, optional equipment are many, thereby the instrument costliness, energy consumption is big, complicated operation, analysis cost height.This gives AES has universally brought very big inconvenience, particularly because it is bulky, can't be applied to field, on-the site analysis, thereby can't monitors in real time environmental sample.The invention is intended to develop the Atomic Emission Spectrometer AES that a kind of apparatus structure is simple, energy consumption is low, cheap, can be used for field, on-the site analysis.
Summary of the invention:
With atomizer and the excitaton source of tungsten filament (accompanying drawing 1) as Atomic Emission Spectrometer AES, miniature charge-coupled image sensor (chargecoupled device, CCD) be detecting device (accompanying drawing 2), portable notebook computer is data handling system (accompanying drawing 3), CCD is connected with portable notebook computer by a USB interface, has obtained a kind of simple, small-sized, portable tungsten filament Electrothermal Atomic emission spectrometer.
Embodiment:
A whole set of instrument is made of three parts: activating system, detection system (miniature CCD) and data handling system (laptop computer).The major part of instrument is the activating system of front, and it also is to be made of three parts: tungsten filament (accompanying drawing 1), power supply (accompanying drawing 10) and carrier gas (accompanying drawing 11) and carrier gas channel (accompanying drawing 9).Tungsten filament part as shown in drawings, tungsten filament is taken from that (model: HLX64633,15V 150W), carefully break the glass outer lampshade of slide projector bulb into pieces, stay tungsten filament and link to each other with lamp socket in the slide projector bulb that OSRAM company produces.Tungsten filament, power supply and carrier gas channel are fixed on the base of an insulation (accompanying drawing 5), load onto cloche (accompanying drawing 4).Cloche has an aperture (accompanying drawing 6) towards experimenter's direction, is the usefulness of sample introduction and carrier gas outflow.(direction at tungsten filament and lens place) must open two holes again on the cloche horizontal direction, is stained with piezoid (accompanying drawing 8) then.Power supply carries out temperature programme to tungsten filament.
Analyte is in atomization on the tungsten filament/after exciting, and transmits after lens (accompanying drawing 7) focus on to be gathered and to carry software by CCD by CCD to export computer to, handles obtaining analysis result at last by Microsoft Excel.
The comparison of tungsten filament Electrothermal Atomic emission spectrometer and ICP-AES
Compare with ICP, the quarter bend of tungsten filament atomizer and ICP be at volume, energy consumption, or air consumption all is much smaller:
1 the present invention adopts tungsten filament as atomizer and excitaton source, and is very simple, the not enough hand size of its volume; But the quarter bend of ICP is bulky because complex structure, and what produce and keep plasma stablely all needs a lot of other equipments, as the optional equipment of controlling room temperature, humidity etc.
The power of 2 general ICP-AES all kilowatt more than, enclose the devices (the general 2000W of air-conditioning power, the general 700W of dehumidifier power) such as air-conditioning, moisture remover of control room temperature, the whole energy consumption of ICP-AES is more than 4000W; And the theoretical peak power of tungsten filament is 150W among tungsten the present invention, and actual consumption is less than this value, and about about 100W, it can not show a candle to the ICP harshness to the requirement of condition of work, and the indoor and outdoor all can be used.
The detecting device of 3ICP-AES generally be multiple tracks charge injection device (charge injected device, CID), for control detection device noise, it needs extra water cooling plant; The detecting device of tungsten filament Atomic Emission Spectrometer AES (CCD) has only hand size, generally can be powered no equipment which requires cooling by computer to it by a USB interface.
The 4ICP-AES air consumption is huge: plasma gas is generally about 15L/min, and about auxiliary gas 0.5L/min, about carrier gas 0.8L/min, overall air consumption is about 17-20L/min; And the present invention only needs carrier gas (10%H
2/ Ar, commercially available), tolerance is generally about 1L/min, and the gas consumption amount much smaller than ICP can adopt the small steel cylinder air feed.
5ICP-AES mostly adopts the solution sample introduction, and this just must carry out pre-treatment to institute's analytic sample, finally makes solution; And the present invention not only can the solution sample introduction, and the sample introduction (slurry sampling) of can realizing suspending, and can reduce the pre-treatment process of sample so greatly, and then reduces sample contamination, makes analysis result accurately and reliably.
6 the present invention are very light, are easy to carry, and can be used for the analysis of alkaline metal and alkali earth metal.
7 data processing of the present invention are simple fast, and spectrogram is high-visible, can write down intensity-wavelength-time three-dimensional data.
8 because the ability of exciting of the present invention is weaker than ICP, so the interference of the spectrum when measuring alkaline metal and earth alkali metal is littler than ICP.
Claims (2)
1. tungsten filament Electrothermal Atomic emission spectrometer, this spectrometer is by an atomizer, miniature charge coupling device, the laptop computer data handling system is formed, it is characterized in that atomizer has adopted tungsten filament as excitaton source, miniature charge coupling device links to each other by USB interface with a portable notebook computer.
2. by the described device of claim 1, it is characterized in that with the atomizer and the excitaton source of tungsten filament as Atomic Emission Spectrometer AES.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520033944 CN2856985Y (en) | 2005-04-21 | 2005-04-21 | Tungsten wire electrothermal atom transmitting spectrograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520033944 CN2856985Y (en) | 2005-04-21 | 2005-04-21 | Tungsten wire electrothermal atom transmitting spectrograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2856985Y true CN2856985Y (en) | 2007-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520033944 Expired - Lifetime CN2856985Y (en) | 2005-04-21 | 2005-04-21 | Tungsten wire electrothermal atom transmitting spectrograph |
Country Status (1)
| Country | Link |
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| CN (1) | CN2856985Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849118A (en) * | 2015-05-26 | 2015-08-19 | 中国农业科学院农业质量标准与检测技术研究所 | Inductively coupled plasma mass spectrometer coupling interface device and analysis method |
-
2005
- 2005-04-21 CN CN 200520033944 patent/CN2856985Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849118A (en) * | 2015-05-26 | 2015-08-19 | 中国农业科学院农业质量标准与检测技术研究所 | Inductively coupled plasma mass spectrometer coupling interface device and analysis method |
| CN104849118B (en) * | 2015-05-26 | 2018-05-01 | 中国农业科学院农业质量标准与检测技术研究所 | A kind of inductively coupled plasma mass spectrometer coupling interface device and analysis method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150421 Granted publication date: 20070110 |